Req #52482 [Opn]: Casting SimpleXMLElement('0') to boolean results in true

Edit report at http://bugs.php.net/bug.php?id=52482&edit=1 ID: 52482 Updated by: salathe@php.net Reported by: sjon at react dot com Summary: Casting SimpleXMLElement('0') to boolean results in true Status: Open Type: Feature/Change Request Package: SimpleXML related Operating System: Linux PHP Version: Irrelevant Block user comment: N New Comment: You are not casting the string "0" to boolean, you're casting the object. As such, it follows normal rules for casting objects. The only time a SimpleXMLElement will cast to boolean false is with an "empty" element (e.g. "<w/>"). If you want your sample element to cast to false, you will first need to cast to a string: (bool) (string) new SimpleXMLElement... Previous Comments: ------------------------------------------------------------------------ [2010-07-29 10:50:11] sjon at react dot com Description: ------------ I understand the bug I am reporting is described in the manual, which is why I am reporting it as a feature request. When casting SimpleXMLElements to boolean, most values comply with the way PHP casts them. There is however one exception: the string '0' is cast to true, which is unexpected. This is especially annoying when using XmlRpc, which uses <boolean>0</boolean> for its values. Test script: --------------- <?php var_dump((bool)new SimpleXMLElement("<w>0</w>")); Expected result: ---------------- bool(false) Actual result: -------------- bool(true) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/bug.php?id=52482&edit=1